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Tom Hiddleston just did one of the cutest things ever. He flew to NYC from London JUST to surprise a group of children at a "Thor: The Dark World" screening! Hiddleston plays the character 'Loki' in the 'Thor' movies, so the children were extremely excited to see him in real life!  

The kid's reactions are so great:

 

Just in case you haven't seen the new trailer for the second "Thor" movie: